%0 Journal Article
%T Effect of Nitrogen Sources on Microbial Biomass Nitrogen under Different Soil Types
%A Haytham M. El-Sharkawi
%J ISRN Soil Science
%D 2012
%I Hindawi Publishing Corporation
%R 10.5402/2012/310727
%U http://dx.doi.org/10.5402/2012/310727